Campus Units

Entomology

Document Type

Article

Publication Version

Published Version

Publication Date

9-2019

Journal or Book Title

Comparative Biochemistry and Physiology Part D: Genomics and Proteomics

Volume

31

First Page

100604

DOI

10.1016/j.cbd.2019.100604

Abstract

The corn earworm, Helicoverpa zea, utilizes (Z)-11-hexadecenal as the major sex pheromone component. The saturated fatty acid derivative hexadecanal is also found in the pheromone gland and recently a large amount (0.5–1.5 μg) was found in male tarsi with lower amounts (0.05–0.5 μg) in female tarsi. In this study, we compared the transcriptome between female pheromone glands (including the ovipositor) and female and male tarsi to identify differences between these tissues, particularly the genes involved in sex pheromone biosynthesis and chemosensation. We found transcripts encoding 9 fatty acyl-CoA desaturases, 20 fatty acyl-CoA reductases, 8 alcohol oxidases, some G protein-coupled receptors and many transcripts involved in signal transduction and pheromone transportation. Also we found gustatory and olfactory receptors associated with the tarsi and ovipositor. Differential expression analysis showed that there were many genes differentially expressed between tissues, including the candidate desaturases, fatty acyl-CoA reductases, and alcohol oxidases. We discuss how some of these genes produce proteins that could be involved in the biosynthesis of hexadecanal in tarsi and (Z)-11-hexadecenal in the pheromone gland and the possible role of proteins in chemosensation of the tarsi and ovipositor.

Comments

This article is published as Dou, Xiaoyi, Sijun Liu, Seung-Joon Ahn, Man-Yeon Choi, and Russell Jurenka. "Transcriptional comparison between pheromone gland-ovipositor and tarsi in the corn earworm moth Helicoverpa zea." Comparative Biochemistry and Physiology Part D: Genomics and Proteomics 31 (2019): 100604. doi: 10.1016/j.cbd.2019.100604.

Rights

Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.

Language

en

File Format

application/pdf

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